There is a product A that is developed by X-Corpoation and is provided as both Community Edition and Commercial Edition. Community Edition is licensed under GPL v1.
A Y-Corporation, my startup, wants to build a product B that is based on the community edition of the product A and wants to also be able to provide a free (community edition) of the product B, as well as the paid versions of the product, just like X-Corporation does.
Can Y-Corporation legally do this?
Product A's source code is taken as a code base and 70% of new features are to be added - this is what product B is panned to be. New name and logo is also a must for product B.
Product A's owner just says they are using GPL v2.
P.S. This is an essential question for my start-up, and can't just be separated and called "legal-only question". Please consider this point before deciding to vote down. Thanks.